package com.bkhc.business.repository;

import com.bkhc.business.entity.Customer;
import com.bkhc.business.entity.Member;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
import org.springframework.data.jpa.repository.Query;
import org.springframework.stereotype.Repository;
import org.springframework.util.StringUtils;

import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root;
import java.util.ArrayList;
import java.util.List;

@Repository
public interface MemberRepository extends JpaRepository<Member,String> , JpaSpecificationExecutor<Member> {

    default Page<Member> findAll(Member member, Pageable pageable){
     return findAll(new Specification<Member>() {
         @Override
         public Predicate toPredicate(Root<Member> root, CriteriaQuery<?> criteriaQuery, CriteriaBuilder criteriaBuilder) {
             List<Predicate> predicate = new ArrayList<>();
             if(!StringUtils.isEmpty(member.getGroupCode())){
                 predicate.add(criteriaBuilder.equal(root.get("groupCode").as(String.class), member.getGroupCode()));
             }
             Predicate[] pre = new Predicate[predicate.size()];

             return criteriaQuery.where(predicate.toArray(pre)).getRestriction();
         }
     },pageable);


    }

    Member findByinviteCode(String inviteCode);
    Member findByUserId(String userId);

    @Query("select Max(m.id) from Member  m")
    Integer generateBusinessAcount();
}
